I think they forgot the hardening!

Hold on, hold on...

I committed the ultimate sin...
It's a carter BBD with the tall jets.

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I'm not sure if a Holly jet tool would fit.

I too was looking for the type with the blade inside a tube but no one states their id
What`s the diameter and length of jet?
I made a tool, I swore was for jets, found it and it seems really big. maybe for a thermoquad?